Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9JLS callsign genealogy
Currently held by SCHULZ, JONATHAN L
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K9JLS's current licensee, walking backwards.
- Smith, James BMOgranted 2010-10-29cancelled 2010-11-23
Successor callsigns
Callsigns held now by people who previously held K9JLS.
- SCHULZ, JONATHAN LILgranted 2024-02-07
All historical holders
Every license row we've seen with the callsign K9JLS, oldest first.
- SCHULZ, JONATHAN L IL1999-03-11 → cancelled 2002-11-05
- SMITH, JAMES B UT2020-10-14 active